Friday, July 27th, 2007...12:02 pm

Sferificacion Experiment

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I’ve been fascinated by El Bulli’s sferificacion since I first read about it. I’m always on the look out for new ways to create interesting textures in vegetarian cooking, and thought that this technique would be a great way to deliver flavours to the mouth. Essentially, you make a liquid preparation, and then create a thin gel layer around a quantity of this liquid, and you end up with a sphere-like shapes, where the liquid bursts out when you break this layer. Spheres can be of all sizes from “caviar” up to “ravioli”.

I’ve never been a fan of meat substitute products where the aim is to replicate the flavour of meat (e.g. that awful veggie bacon), but I do like those products which seek to deliver flavours in textures not normally present in veggie food (I’m a great fan of tofu sausages, and buddhist chinese cooking).

I saw this as a great way of making vegetarian caviar. I’m not trying to replicate caviar, but more an experience of the flavour and sensation of the sea in tiny spheres, which you could then use in a similar way, maybe in sushi or served on blini.

Before I could get to that though, I needed to learn the technique. I bought a Texturas Sferificacion kit. I’m aware this isn’t the cheapest way to buy this kind of stuff, but it was an easy way of starting.

Ingredients

  • Algin – alginate, a Seaweed extract
  • Citras – Sodium Citrate
  • Calcic – Calcium Chloride

Tools

  • Precision scale
  • Measuring spoons
  • Syringe

I’m having problems with my digital camera, hence photos here are taken on my phone, and hence are slightly dodgy. I hope to improve the camera quality soon, but maybe not able to improve the photographer quality.

I followed the Texturas recipe for mango ravioli.

Making the preperation

First I needed mango puree, I took two mangos, chopped them up, then pureed them with my Bamix.

Mango Puree

Next thing was to prepare the alginate mixture. Using the precision scale, I measured out 1.3g of the citras, bamixerised (used my Bamix) it with 250g of water, then measured out 1.8g of the algin and bamixerised again. This was then brought to the boil in a pan and allowed to cool. It’s very viscous and gloopy. It doesn’t taste of much, but it’s hardly pleasant.

Algin, Citras mix

The point of the citras is manage the PH, which needs to be above 4. Once this cooled, I blended in the mango puree, and we have the preperation.

Mango Preperation

Preparing the calcic bath

Spherification is the chemical reaction between the algin and the calcic, so we now need to prepare a bath to add our preperation to. This is simply a matter of blending 5g of the calcic with 1000g of water and putting it in a large bowl or similar. I also had a another bowl of water to drop the spheres in to wash them, to slow down the spherification. The process doesn’t stop and you end up with hard spheres if you leave them long enough.

Making caviar

My first attempt was to make mango caviar. I loaded up my syringe and dripped the preparation into the bath.

Mango Caviar

It was tricky at first and I think it could be down to the syringe. It didn’t drip very well, and it started becoming more like noodles. Eventually I got the hang of it, but I still think I’ll need to modify the syringe or get a different one.The caviar themselves are fun to eat. They’re pretty much as you’d expect. The gel layer doesn’t taste of much and the algin doesn’t seem to have affected the flavour.

Mango Caviar 2

Ravioli

Now this is hard, and I was unable to master this technique, but I ended up with a couple of successes. The aim is to load up your dosing spoon and pour it into the calcic. I had a similar experience to many others that I’d read in various forms on the web, and ended up with tadpoles.

Mango Tadpoles

This was really quite a fun experience to eat though. Once again, the gel was fairly tasteless and you got the burst of flavour. They were also quite tough and you can manhandle them a fair bit.

Mango Ravioli

Conclusion

This is definitely something I’m going to use again. Like I mentioned, I want to make vegetarian caviar, but also I’m thinking of making sweet and sour caviar, i.e. two types, one with tamarind, the other with some kind of sugar. I wonder what the combination of two types of caviar will be like. I’m also thinking this could be a great chilli delivery system. As for the mango, I didn’t think the flavour was all that interesting, but then I live in the UK, and we don’t get the best mangoes. I should have also probably paired the ravioli with something. But the purpose of this was to experiment with the technique before creating recipes, so I’m happy with the way things turned out.

1 Comment

  • I am happy to know that there are so many people who are interested in the Caviar crazie as I am. Do you possibly know of how one can purchase the equipment used ar the Tapas Molecular bar with several syringes?
    If you do please let me know. Thanks.