this is my first post on cheeseforum. I have been reading all the information everyone has posted over the years but never felt game enough to contribute.
I have just completed 4 years of commercial cheesemaking in my own factory, that has now ended. My new adventure is cheesemaking classes. I really want to use shop bought milk, mostly homogenised and pasteurised as most people can only obtain this type of milk.
So after reading about everyones disasters I have reused a recipe we used to make which is based on Carole Willmans "Home Cheesemaking" recipe.
When making cheese in small quantities I use a small portable gas camping stove, large 10 litre bain marie tray, metal rack to keep the smaller bain marie tray/ stock pot off the bottom of the waterbath pan.
* 10 litres good quality pasteurised and homogenised cows milk bring to 37C
* add 2.5ml Calcium Chloride in 50ml unclorinated cooled boiled water. Stir in for 1 mins
* add 150ml Multiple Strain Thermophile (C starter) I had set this the night before as a liquid culture. Stir 1 minute
* cover with lid, leave 30 mins
* add rennet at 2.5ml in 50ml unclorinated cooled boiled water. Stir 2 mins
* Cover with lid, leave 30 mins
* cut curds 1.5mm cubes and leave undisturbed for 5 mins.
* stir very slowly and gradually increase speed over the next 30 mins also increasing temperature to 42C over that 30 mins.
* (I found the water bath needed to get to 55C to get that increase)
* Maintain the 42C temp and keep slowly stirring for another 50 mins (the curd is quite small at this stage but thats ok)
* PH 6.1 - 6.2 at the end of this step. I used strips and it indicated this was correct
* Remove all whey (you could use this for ricotta) I used a fine colander over a sterilised bucket to catch the curd
* Put curd back into the warm bain marie over the water bath and maintain 42C (you may have to cool down water bath).
* turn mat of curds every 15 mins x 4 times (so over an hour long period) drain any whey
* PH should be 5.7 and the ph strip indicated this was correct
* have a pot of water ready with 80C water.
* test a small piece of curd in the water and if after a few minutes it starts to stretch then your ready
* cut curds into 2cm cubes and sprinkle with a few tablespoons salt
* throw half the cubes into the water and you may need to heat a little to keep the temp at 80C
* using a slotted spoon scoop up half the curd and (using rubber gloves) knead the curd into a stretch and knead movement
* The curd should become smooth and pliable. You can take the curd out of the water to do this but dip back in if it starts to break
* Form a neat ball and drop into ice cold water
* continue with the rest of the curd.
I left the balls in the cold water for an hour until I had cleaned up then added some salt brine to the container until the next day.
I am not sure how to keep the mozzarella fresh, it does need to be used quickly.
The flavour is good but using fresh cows is best.
Let me know if you have any questions. I have photos on my facebook page but can put them on here when I get the hang of it.