Sous Vide Cooking

Tag: Sous Vide appliance

Are Douglas Baldwin Sous Vide Cooking Tables Correct? Review of Baldwin’s table with a 30 mm Salmon Mi-Cuit

by on Mar.15, 2010, under Books, Equipments & Accessories, Time and Accurate Temperature

As you may already know Douglas Baldwin “Practical Guide to sous Vide Cooking” is to date probably one of the only serious source of information about sous vide that you can download for free on internet (English, Portuguese/Brazil, French and German). The revolution of this document is to allow home cooks cooking sous vide with tables. No need of an external probe to be inserted in the pouch in order to get the internal temperature of the food. Before using Baldwin tables I purchased most of the books available but none of them were mentioning the thickness of food as a key information in order to cook sous vide. Therefore, in my opinion, all these books can be considered as art books but not cooking books where recipes can be reproduced.

I have experimented Baldwin tables for a while now and I have to admit that I have never been sick or disappointed by the degree of doneness according to the temperatures given.

Nevertheless I realized that nobody on the net ever discussed if Baldwin tables are correct or not. Do I have to accept the fact that everybody is assuming these tables are accurate?

This the reason why I decided to purchase an external penetration probe and verify by myself. For those who would like to purchase such equipment I want to say that I made a mistake in my previous post when buying the needle probe from Thermoworks. The one that should be used for sous vide (water proof) is THS-113-181 only (see on the right of the picture). The needle is very thin (1 mm) and long enough to get inside a 7 cm thick beef fillet (incl. the turbigomme foam).

For my first test of Baldwin table I took a cut of salmon, 30 mm thick that I wanted to cook “mi-cuit” at 47°C. Douglas Baldwin table indicates 1 hour and 2 minutes cooking time. As mentioned in Baldwin document I raised the temperature of my immersion circulator of 0.5°C (47.5°C) in order to be sure to reach the target temperature of 47°C.

In order to comply totally with Baldwin table I took care the core temperature of the salmon was 5°C. This step made me realizing that my fridge is definitely not cold enough as the core temperature of my salmon was 10°C before chilling it! As illustrated on the picture I immersed the pouch in iced water for some minutes.

As mentioned above I set my immersion circulator at 47.5°C for 1:02 and noted frequently the data in order to make a graph out it.

And the result is EXCELLENT!

I was very surprised to see how fast the temperature was raising during the first minutes. I was also having some doubts when the countdown of my sous vide equipment was indicating 22 minutes left while the core temperature of the salmon was 36.6°C. The last tenth of degrees take really long to be reached and I now understand why you should set your sous vide appliance 0.5°C above the target temperature…if you don’t it will take ages before you really reach the target temperature.

Jean-François

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Test of Addélice’s Immersion Circulator in a 20 litres container

by on Nov.23, 2009, under Equipments & Accessories

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I received several questions of people interested by the swid of addelice. Their main worry was to determine if the swid is for professional purposes or for home cooks. To all of them I replied and said that I am not a professional and therefore don’t know their expectations as a professional. I realized that I tried the swid in  3.5 litres and 8.5 litres pots only. The manual of the swid indicates that the stability of the temperature is optimized up to 20 litres.

I went inside my uncle cellar and found an Ikea plastic box (€ 3) that I filled with 20 litres water.

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I had to face a problem with the plastic container which is very flexible. Attaching the swid with the clamp to the container was not possible as the swid was too heavy. Therefore I found a glass cutting board that was perfectly the hight of the container. I put this board between the plastic container and the clamp. This generated an excellent stability for the swid to be attached.

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I set the swid at 55°C only because I am not realy trusting in the Ikea container that could melt or not resit to higher temperatures. The manual of the swid indicates the Adaptive PID controller (that assesses the amount of the water i n the pot) was optimized if the starting temperature is at least 15°C lower than the target temperature. It took 15 minutes to heat the water from 25°C to 55°C and, after 5 more minute,s the stability of the water bath was excellent.

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I decided to make an addition test: immersing a bottle of cold water (3°C) simulating a cold pouch in a water bath.

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It worked perfectly.

To sum up I confirm the swid thermal circulator can heat easily a 20 litres water bath.

Jean-François

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The SWID – First images and impressions of Addélice Immersion Circulator dedicated to Sous Vide Cooking

by on Oct.21, 2009, under Equipments & Accessories

swid-addelice-thermal-immersion-circulator-cooker-equipment-appliance-sous-vide-4Two weeks ago, I have been contacted by Addélice who has proposed me to test their new immersion circulator dedicated to sous vide cookery.
I was honored by their proposal and, as you can imagine, I have accepted!

I received the Swid this morning and had only time to take some pictures before leaving. I am very excited to share my first impressions about this sous vide appliance!

I was very surprised by the size and the weight of the Swid. I had to give back the Julabo EC that was borrowed to me during summer holidays and therefore I can’t show you pictures to compare the 2 appliances. Nevertheless I took some pics to compare the Swid with the SousVideMagic.

The Swid is compact and can be stored easily in one of your kitchen draws. This is an excellent point.
The casing is amazing, very soft and sensual to the touch. The protection grid is part of the whole metal structure of the Swid. For the record a metal grid is always coming as an option with the other immersion circulator such as Polyscience and Julabo…The Swid grid as a funny design with holes like bubbles carved in the metal.

I didn’t have time to try it so far but my first feeling about the swid is excellent. I’ll come back to you as soon as I have a little bit more time.

Jean-François

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