The limits of what Meyar's reference material can be relied on for — food safety, technical figures, equipment and regulatory compliance.
Disclaimer
You are responsible for what you serve.
Meyar is a reference work. It is written carefully, sourced where sourcing is possible, and reviewed. It is not a substitute for your own professional judgement, your regulator's requirements, or your employer's procedures.
You are responsible for what you serve. Nothing on this site transfers that responsibility to us.
The procedures, standard operating procedures, checklists and workflows published here are general reference material. They are not tailored to your outlet, your equipment, your supply chain, your team, or your jurisdiction.
Before adopting any procedure, you must adapt it to your own operation and verify it against the requirements that apply to you.
Material relating to food safety, hygiene, temperature control, HACCP, allergens and shelf life is published for reference and training purposes.
It does not replace:
Where this site and your regulator differ, your regulator prevails. Always.
Ingredient, allergen and nutritional information is published for general reference and may be incomplete, may vary between suppliers, and may change without notice.
Never rely on this site to make an allergen declaration to a customer. Verify against the actual product supplied to you, on the day, from its own label and specification.
Nothing on this site is medical or dietary advice. If you have a health condition, consult a qualified professional.
Ratios, temperatures, timings, yields, extraction figures, dosages and costings are reference values. They depend on your equipment, your water, your ingredients, your altitude and your calibration.
Where a figure is sourced, the source is stated. Where a figure is our own measurement, it is stated as such. Verify every figure against your own equipment before relying on it commercially.
Calculators are provided as aids. Check the output. We accept no liability for a costing, a yield, or a price derived from them.
Equipment material is general reference. It does not replace the manufacturer's manual, safety instructions, or service requirements.
Do not perform maintenance, descaling, disassembly or electrical work on any equipment except in accordance with the manufacturer's instructions and by a competent person. Espresso equipment operates at pressures and temperatures capable of causing serious injury.
Meyar does not provide legal or regulatory advice. Requirements differ between countries, between cities, and over time.
Your compliance is your responsibility. Confirm it with your regulator, not with this site.
Learning material and assessments published here record completion of the knowledge component of the material covered.
They do not constitute:
Meyar is not an accredited certification body and does not claim to be one. Any certificate issued records completion of the assessed knowledge component only, and states so on its face. Certificates are not time-limited and carry no expiry.
Using Meyar does not create an advisory, consultancy, employment or professional relationship between you and Mostafa Aly.
If you require advice specific to your operation, that is a separate engagement. Contact mostafa@mostafaaly.com.
We correct errors when we find them, and we state the source of factual claims where a source exists.
Material may nonetheless be incomplete, out of date, or superseded by a standard published after it. Where a page carries a review date, that date tells you when it was last checked — not that it is currently correct.
If you find an error, tell us: mostafa@mostafaaly.com. Corrections are welcome and acted on.
Links to external resources, standards bodies and manufacturers are provided for convenience. We do not control them and do not endorse them.
Reference to a published standard does not imply that the publishing body endorses Meyar or is affiliated with it.
To the fullest extent permitted by law, Mostafa Aly accepts no liability for any loss, damage, injury, illness, penalty or business consequence arising from reliance on the material published here.
The limitation of liability in Clause 8 of the Terms of Use applies in full to this Disclaimer, including the exceptions in Clause 8.4 for liability that cannot lawfully be excluded.
© 2026 Mostafa Aly · Licensed under CC BY-NC-ND 4.0