u/tuva_aalto

Contributes reviews on supplier material. Based in Kochi.

member · joined 11 Feb 2025

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c/coa·posted 8 days ago by u/tuva_aalto

this COA has no batch number and no date. what am i even looking at

Trying to settle this properly because the thread from last year went in circles. The claim: COA matters. The counter-claim: it is measurement error. Both sides have…

Question 12 comments78% upvoted

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c/coa·posted 8 months ago by u/tuva_aalto

COA vs purity — genuinely asking which matters more

I have had 19 orders now and I keep a table, so here is the honest summary rather than a vibe. Material has been consistent. Communication has not. Shipping has varied…

Explainer 20 comments95% upvoted722

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Cake day 11 Feb 2025

Sigma-Aldrich Standards

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