Privacy Policy

1. Who We Are

EspressoMath operates a suite of free web-based tools for specialty coffee professionals. This policy describes how we collect, use, and protect information when you use our website.

2. Data We Collect

EspressoMath does not require registration or account creation. The following limited data may be collected:

• Usage data: Standard server logs including IP address, browser type, referring URL, and pages visited. This data is held for a maximum of 30 days and is used only for security and performance monitoring.
• Cookies: We set a single cookie (key: ck) in your browser's localStorage to record your acceptance of this cookie notice. No tracking cookies or third-party advertising cookies are set by default.
• Calculator inputs: All calculations performed on this site run entirely in your browser. No input values are transmitted to our servers.

3. How We Use Your Data

Data collected through server logs is used solely to maintain service availability, diagnose technical errors, and identify security threats. It is not sold, shared, or used for marketing purposes.

4. Third-Party Services

This site loads fonts from Google Fonts (fonts.googleapis.com) and cover images from Unsplash (images.unsplash.com). These requests are subject to Google's and Unsplash's respective privacy policies. No personal data is transmitted as part of these requests beyond standard browser information such as IP address and user agent.

5. Your Rights Under GDPR

If you are located in the European Economic Area, you have the following rights regarding your personal data:

• Right of access: you may request a copy of any personal data held about you.
• Right to erasure: you may request deletion of personal data we hold.
• Right to restriction: you may request that processing be limited in specific circumstances.
• Right to object: you may object to processing based on legitimate interest.
• Right to portability: you may request your data in a structured, machine-readable format.

To exercise any of these rights, use the contact form on this page.

6. Data Retention

Server log data is retained for a maximum of 30 days. LocalStorage data (cookie consent flag) is stored on your device and can be cleared at any time through your browser settings.

7. Security

All pages on this site are served over HTTPS. Calculator logic runs client-side and no user-entered data leaves your browser. We do not store any financial, health, or otherwise sensitive personal data.

8. Children's Privacy

This site is not directed at children under the age of 13. We do not knowingly collect personal information from children.

9. Changes to This Policy

We may update this policy periodically. The date at the top of this page will reflect the most recent revision. Continued use of the site after a policy update constitutes acceptance of the revised terms.