I've bought an ice cream bucket with, who would've guessed, cream - as one of its' ingredients. Now of course I've done some research and found out, that cream is usually produced with a centrifuge called "separator". However this website:



Gelatine Sieve :

When cream is first made from milk, the cream needs to be strained from the milk. To do this, a very high-quality strainer with fine pores are needed to separate the two liquids of different densities. The better the sieve used, the better the quality of the skimmed (low/non-fat) milk produced.

[...]. The high-quality strainer in this case, could be the gelatine sieve, made of pig gelatine because it has really fine pores.

Is that true? Thanks in advance!

  • That site is based on differentiation for religious requirements, not functional requirements. Cream is generally separated by a centrifugal [centripetal] process. Additives may include gelatine.
    – Tetsujin
    Commented Mar 25, 2020 at 19:17
  • @Tetsujin 1. So theres no chance for it to have been seperated with a gelatine filter after it has gathered on the surface of the milk? (Or did I get that websites statement wrong?) 2. Additives in the cream or general product? [p.s.: I'm a muslim]
    – lofaji
    Commented Mar 25, 2020 at 20:00
  • 1
    if all fails, just make certain you buy halal ice-cream; it's your only guaranty.
    – Max
    Commented Mar 25, 2020 at 20:21
  • 1
    If I understand halal and kosher properly then almost by definition kosher products are also halal. In America tons of stuff are certified kosher (example walmart.com/ip/Great-Value-Cookies-Cream-Ice-Cream-48-fl-oz/… if you look towards the bottom you’ll see an OU, that tells you it’s certified kosher by the orthodox union and the D tells you it’s dairy)
    – mroll
    Commented Mar 26, 2020 at 5:46
  • @mroll kosher allows alcoholic ingredients, though.
    – lofaji
    Commented Mar 27, 2020 at 11:05

1 Answer 1


You read the site correctly, it's just that the information on the page is incorrect.

Commercial cream production consists of 5 main steps (from here, lots of info about different types of cream there too):

  1. Skimming, centrifugation: separation of fat globules in milk. Milk skimming is done in a centrifugal cream separator.
  2. Fat standardisation: in order to obtain the expected fat content.
  3. Homogenisation: to prevent the creaming phenomenon during storage and to allow an increase in cream viscosity (for low-fat fluid creams)
  4. Heat treatment: the objective is to inactivate microbial lipases and as a result destroy pathogenic germs without damaging the cream organoleptic qualities. Most creams are pasteurised.
  5. Seeding and maturation: pasteurised creams may be matured with acidifying, aromatic or even thickening mesophilic lactic bacteria. Maturation gives more taste to the creams and protects it against lactic acid and bacteriocin production.

Gelatin would make a poor filter for this sort of thing - it is weak structurally and diffusion of the water molecules through the pores is slow - it would take days to dialyze/strain the volumes produced in a commercial system, which increases the risk of bacterial and fungal contaminants growing, and makes the system slow.

Gelatin is added to some creams (thickened cream (UK/AUS/NZ), whipping cream (USA)), to act as a thickener and produce a smooth stabilized foam when whipped. Gelatin can come from a variety of animal sources, but generally pigs and cattle which is why creams need to be certified as halal. Many commercial products contain vegetable derived thickeners (e.g. carrageenan) instead of gelatin

  • In that case my standard cream (NON thickened cream, NON whipping cream) doesn't get in touch with gelatin (or carrageenan), is that correct to assume?
    – lofaji
    Commented Mar 25, 2020 at 21:45
  • 1
    @lofaji - yes that would be a fairly safe assumption. They would need to be mentioned in the ingredients if they were added.
    – bob1
    Commented Mar 26, 2020 at 8:11

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