Tube, emulsion, vacuum emulsion sub bottle, cotton swab 1, needle tube buy the size that can be inserted into the sample bottle. Do not use a needle, because the emulsion is thick, and the needle cannot suck it out. 2. Squeeze into the vacuum bottle. Always use a vacuum bottle! Because the sample emulsion is squeezed in little by little, there will be many gaps and air in it. If the ordinary emulsion is bottled separately, there will be many unable to squeeze out. The vacuum bottle will not have this situation. It will exhaust the air in the bottle first, and then the thick emulsion will come out. 3. Milk
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