I have recently come to know Miss Silvia. She’s from Italy, weighs a good 14 kg and even my wife welcomed her in our kitchen! As home brew espresso afficionados will know by know, I’ve become the proud owner of an espresso machine from Rancilio! She’s been around for a number of years, and is one of the most popular among prosumer espresso machines available before you take the step up to double boiler machines that allow simultaneous brewing and steaming. Every place that is (proud of) serving espresso uses these machines, but their price is well beyond most coffee lovers budget. The good news however is that even single boiler machines can produce excellent espresso!

The first time I offered the science of espresso any thought was when reading Jeffry Steingarten’s accounts of his espresso adventure (in “It must’ve been something I ate”) which brought him all the way to Italy and Illy and then back again to Manhatten where he set up 14 home espresso machines in his kitchen. This is also where I first was made aware of the fact that 7 g of coffee should be used for a single espresso (which is considerably more than the 5-6 grams found in the Nespresso capsules).

Since I decided to buy an espresso machine I have been devouring sites written by and for coffee enthusiasts: CoffeeGeek, Home Barista and Espresso! My Espresso! to mention a few. You’ll be surprised how much one can possibly write about espresso!
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There are a couple of recent academic papers that have been published the last 2 years which I haven’t mentioned in blog posts, but they really deserve attention. Here’s the list (with quotes from the abstracts):

Molecular gastronomy: a food fad or science supporting innovative cuisine? Cesar Vega, Job Ubbink (Trends Food Sci Technol 2008, 19(7), 372-382)

The concepts, history and approaches of molecular gastronomy are discussed with an emphasis on the relation to food science and technology. A distinction is made between molecular gastronomy and science-based cooking (…) We discuss how chefs are dealing with the available systematic knowledge on food and cooking, and how molecular gastronomy can facilitate the cumbersome, but much needed discussions among food scientists and chefs.

Molecular Gastronomy: A Food Fad or an Interface for Science-based Cooking? Erik van der Linden, David Julian McClements and Job Ubbink (Food Biophysics, 2008, 3(2), 246-254)

A review is given over the field of molecular gastronomy and its relation to science and cooking. We begin with a brief history of the field of molecular gastronomy, the definition of the term itself, and the current controversy surrounding this term. (…) On the one hand, it can facilitate the implementation of new ideas and recipes in restaurants. On the other hand, it challenges scientists to apply their fundamental scientific understanding to the complexities of cooking, and it challenges them to expand the scientific understanding of many chemical and physical mechanisms beyond the common mass-produced food products.

The life of an anise-flavored alcoholic beverage: Does its stability cloud or confirm theory? Elke Scholten, Erik van der Linden, Hervé This (Langmuir 2008, 24(5), 1701-1706).

The well-known alcoholic beverage Pastis becomes turbid when mixed with water due to the poor solubility of trans-anethol, the anise-flavored component of Pastis in the water solution formed. This destabilization appears as the formation of micrometer-sized droplets that only very slowly grow in size, thus expanding the life of the anise-flavored beverage. (…) experiments on Ostwald ripening show an increase in stability with increasing ethanol concentration, the results based on our interfacial tension measurements in combination with the same Ostwald ripening model show a decrease in stability with an increase in ethanol concentration.

Formal descriptions for formulation, Hervé This (Int J Pharm 2007, 344(1-2), 4-8)

Two formalisms used to describe the physical microstructure and the organization of formulated products are given. The first, called “complex disperse systems formalism” (CDS formalism) is useful for the description of the physical nature of disperse matter. The second, called “non periodical organizational space formalism” (NPOS formalism) has the same operators as the CDS formalism, but different elements; it is useful to describe the arrangement of any objects in space. Both formalisms can be viewed as the same, applied to different orders of magnitude for spatial size.

Lavoisier and meat stock Hervé This, Robert Meric, Anne Cazor (Compt Rend Chim 2006, 9(11-12), 1510-1515).

Antoine-Laurent de Lavoisier published his results on meat stock’ preparations in 1783. Measuring density, he stated that food principles’ were better extracted using a large quantity of water. This result was checked.

The food pairing seminar is named “The Flemish Primitives” after the 15th and 16th century artists who were combining talent with new techniques.

I’ve blogged about the upcoming food pairing seminar in Belgium on January 5th previously, but there are a couple of important additions to the programme: Albert Adrià (El Bulli, Spain) and Ben Roche (Moto, USA) will also participate. Given the extensive list of other chefs and notabilities within the realms of molecular gastronomy and science inspired cooking that will be present, this is definitely the place to be on January 5th. Registering is online, and the early bid registration fee is €245 (rises to €295 from November 16th). More information is available from the website (also in html format).

Tri-2-cook has announced the foods to pair in the twelfth round of “They go really well together” (or TGRWT for short): apricot and chanterelle. More information on how to participate can be found in the announcement post. If the ingredients are out of season where you live, remember that you can use ingredients that are dried, canned or preserved. The heating and/or air exposure can of course alter the flavor composition, but it’s still worth giving it a try.

Regarding the chemistry behind this flavor pairing I’ve found the following. Based on quantitative measurements Greger and Schieberle identified 18 compounds with odor activity values (OAVs) greater than 1 in apricot (Prunus armeniaca). I have not been able to locate any studies of chanterelle (Cantharellus cibarius) with OAV values, but there are a couple of articles which list volatile compounds. Comparing these lists with the OAV data for apricots there is not much overlap. The only compounds which had an OAV > 1 in apricots and were also found in chanterelle are 1-octen-3-one (OAV in apricot = 55) and hexanal (OAV in apricot = 15) shown in the figure below.

It’s interesting to note that OAV studies often come with certain surprises regarding flavor compounds. As Greger and Schieberle point out in their abstract:

certain lactones, often associated with an apricot aroma note, such as gamma-undecalactone, gamma-nonalactone, and delta-decalactone, showed very low OAVs (<5) (...) Omission experiments indicated that previously unknown constituents of apricots, such as (E,Z)-2,6-nonadienal or (Z)-1,5-octadien-3-one, are key contributors to the apricot aroma.

Some compounds that are present at higher concentrations are less important because they have a high odor threshold, whereas other compounds which are present in minute quantities play important roles because we can detect them at very low concentrations. Once again this shows how important it is to use OAV values when looking for flavor pairings!

It’s time for the TGRWT #11 round-up. I apologize for the small break since TGRWT #10, but now we’re definitely back. Many exciting recipes this time – and great photos too! Not all were a great success judging by the comments though. But several give their concoctions a thumbs up and a “will definitely cook again” verdict.

As we have seen earlier, the challenge of these pairings is getting the balance right. Several have felt the numbening effect of cloves. This is due to eugenol, the main component of clove oil, which acts as a local anasthetic (and surprisingly celery also has sufficient levels of eugenol to cause numbening in some individuals!).

If you missed the deadline and are still working on a blog post – please let me know and I’ll update this post. And if you’re ready for a new challenge be sure to check out what we’re up to in TGRWT #12 which has already been announced!

Pork-banana-clove
by Tri-2-cook
Verdict: I liked the banana and clove as a flavor pairing and thought it worked really well with the pork (…) I was happy with the result and I’ll definitely do it again.

Banana and cloves Pisang Goreng
by Mededelingen van Land en Tuinbouw
Verdict: Yummy! A bite of the soft bananas with a little lump of clove brings out a very rich taste. The aftermath, when the flavour comes back through the nose, is wonderful.

Banana Mousse and Clove Caviar
by A Chef’s Journal

Banana Clove Truffles
by Hungry soul kitchen
Verdict: These were overly sweet (…) white chocolate, banana, and clove go well together, just don’t let one overpower. Banana and clove itself is excellent and I will experiment with these two a lot more.

Banana-Soufflee with cloves
by Lamiacucina
Verdict: When tasting I would have guessed cinnamon as a spice. Cloves go very well with banana.

Banana and clove milkshake
by Fooducation
Verdict: (…) banana milk shake is on the brink to being insipid. The cloves made a difference, adding another note to the drink. Conclusion: I find the banana-clove combination to be successful.

BFBWWTFDIDWTLOB Biskit
by aka R’acquel
Verdict: “Interesting” – and nothing more, but definitely – “interesting”.

Viper’s Bile Green Curry Paste
by aka R’acquel
Verdict: (…) experienced a mild high after this meal – fairly resonant to the sensation of drinking kava.

Banana cake with cloves
by Grydeskeen
Verdict: When eating the clove-injected banacake the first impressions was like a spice cake, where the texture was like a bananacake. You could feel the banana in the mouth, but only hints of the taste was there. The taste then evolved into more regular cloves taste, and the aftertaste was a slightly bitter cloves taste, which lasted for hours.

Ginger-Glass bowl of banana mousse with cloves biscuits and lemongrass jelly
by Alessio Fangano
Verdict: The biscuits results fragrant (…) cloves appear as a back taste that spikes when biting over a shard releasing a sensation of freshness. (…) The foam exhales an equilibrated scent of rose water and banana (…) the recipe works quite well though the cloves biscuits need some further development.

Arretjes Banoffee Pie with cloves and pecan nuts
by Kokrobin (recipe)
Verdict: You’d think there was too much going on, but it wasn’t that bad. I think it really worked. Well, for my mouth, not my hips.

Banana Clove Canolli
from Blogquat
Verdict: The banana was subtle, yet lingering and deep. The clove, on the other hand, was at first over powered by the white chocolate, but then remained the lasting taste in my mouth.

Banana Martini with Clove “Olives”
by Blogquat
Verdict: (…) the vodka made my head numb and the clove made my tongue numb. This could be a dangerous drink!

Banana breads with cloves
by The bite size
Verdict: Cloves and banana is a match! Actually, I think bananas go very well with all these “autumn/winter” spices such as cloves, cardamom, nutmeg, pepper, anis, vanilla etc.

Banana chutney
by Kookjegek
Verdict: I liked the sweetness of the banana & red onion together with the distinct flavor of the clove. Although I used a tablespoon, which in my opinion is a lot, it worked for me as a combination.

Pork tenderloin with banana and cloves
by Khymos
Verdict: I enjoy the combination of sweet and salty tastes in the banana sauce. I goes very well together with the pork.

(no picture)
Banana Clove Yoghurt Shake
by M
Verdict: Not bad but I could not detect the taste of clove.

40-second banana cake
by Mex Mix
Verdict: Just out of the microwave the cake appeared almost salty and with a lot of cheese aroma. It wasn’t the taste I was looking for. Colder however, the sweetness came out and it was just what I had in mind. (…) The purée tasted quite good, with the aroma of the cloves really coming forward and marrying itself with the banana.

Dehydrated banana with clove
by Cooking Sideways
Verdict: I was surprised how much flavour got into the bananas, considering I had only stuck the cloves in moments before drying. (…) A really good snack to eat on its own, probably not a strong enough all round taste for most culinary uses though.

Banana and cloves bavarian cream pie
by Koken met Frank
Verdict: At first glance the cloves tasted too strong. But the freshness of the lemon and the softness of the cinnamon flattened this penetrating taste and became in harmony with the cloves. Only the first bite of the pie was of strange taste, the latter bits were amazing, the cloves struggled to be the strongest tasting component, but the cream and milk kind of covered your tasting buds a bit such that the combination of all the flavors got to its best extend.