Privacy Policy

Last updated: 2026-05-03

1. About This Privacy Policy

This Privacy Policy explains how Sourdough Hydration Adjuster ("the Site," "we," "us") collects, uses, and shares information when you visit sourdough-hydration-adjuster.hub2.day. We built this tool to help home bakers calculate flour and water adjustments for sourdough starters and doughs. We take your privacy seriously and design our data practices to be minimal and transparent.

2. Information We Collect

2.1 Information You Provide Directly

You can use the hydration calculator without creating an account or submitting personal data. If you choose to contact us at [email protected], we will receive your email address and any information you include in your message. We use this only to respond to your inquiry and do not add you to marketing lists.

2.2 Information Collected Automatically

Browser-local tool inputs: The hydration calculator runs entirely in your browser. Any starter weights, hydration percentages, or target values you enter stay on your device and are never transmitted to our servers. We do not see, store, or process your recipe numbers.

Server and security logs: Our hosting infrastructure automatically records standard technical data when you access the Site. This may include your IP address, browser type, operating system, referring pages, and timestamps. We keep these logs for a short period to maintain security, diagnose problems, and prevent abuse. Logs are not used to build user profiles.

Cookies and local storage: The Site itself does not set first-party cookies for tracking or personalization. We may use a tiny amount of browser local storage solely to remember your calculator preferences (such as unit display) across visits. This data never leaves your device and is not accessible to us. Third-party services described below may set their own cookies.

3. Advertising and Third-Party Services

3.1 Google AdSense

We display advertisements through Google AdSense, which uses cookies and similar technologies to serve ads based on your prior visits to this Site and other websites. Google and its partners may collect data about your browsing to show interest-based advertisements. We have enabled Google's auto-ads feature, which means ad placement and formats are determined automatically.

You can learn more about how Google uses data and how to control your ad settings at Google's Partner Sites policy. You can also adjust your ad personalization preferences through Google Ad Settings.

3.2 GDPR, EEA, and UK Consent

If you are located in the European Economic Area, the United Kingdom, or Switzerland, we rely on a consent management platform (presented via a cookie banner) to obtain your permission before non-essential cookies and ad-related data processing occur. You can change your consent choices at any time by clicking the "Privacy & Cookies" link available on the Site. Withdrawing consent does not affect the lawfulness of processing based on consent before its withdrawal.

3.3 CCPA / CPRA Choices

If you are a California resident, you may have the right to opt out of the "sale" or "sharing" of personal information as defined under California law. Our use of Google AdSense may involve the sharing of limited device data and online activity identifiers for targeted advertising, which could be considered a "sale" or "sharing" under the CCPA/CPRA. You can exercise your right to opt out by using the "Do Not Sell or Share My Personal Information" link provided on the Site, or by broadcasting a Global Privacy Control signal from your browser. We do not knowingly sell or share personal information of consumers under 16 years of age.

4. How We Use Information

We use the limited information we collect only for the following purposes:

We do not use your information for automated decision-making or profiling.

5. Service Providers

We work with a small number of trusted service providers who help us operate the Site. These include our hosting provider (which processes server logs) and Google (which delivers advertisements). These providers are contractually bound to handle data only on our instructions and in compliance with applicable data protection laws.

6. Data Retention

We retain server and security logs for a maximum of 30 days, after which they are automatically deleted. Email correspondence is kept only as long as needed to resolve your inquiry, and no longer than 12 months. Cookie durations are set by third parties (such as Google) and are described in their respective policies.

7. Children's Privacy

The Site is intended for a general audience and is not directed to children under the age of 16. We do not knowingly collect personal information from children. If you believe a child has provided us with personal data, please contact us at [email protected] and we will delete it promptly.

8. Security

We implement reasonable technical and organizational measures to protect the information we process. However, no internet transmission is completely secure, and we cannot guarantee absolute security. The calculator's browser-local design means your recipe data is inherently protected from server-side breaches.

9. Third-Party Links

The Site may contain links to external resources or references to baking supplies and techniques. We are not responsible for the privacy practices or content of those third-party sites. We encourage you to review their privacy policies before sharing any information.

10. International Data Transfers

The Site is hosted and operated from servers that may be located in various countries. If you access the Site from outside your country of residence, your information may be transferred to, stored, and processed in a jurisdiction with different data protection rules. By using the Site, you acknowledge such transfers. We rely on appropriate safeguards (such as standard contractual clauses) where required.

11. Your Rights and Choices

Depending on your location, you may have rights regarding your personal data, including access, correction, deletion, restriction, portability, and objection to processing. To exercise these rights, or if you have questions about this Privacy Policy, please contact us at [email protected]. We will respond within the timeframes required by applicable law. You also have the right to lodge a complaint with your local data protection authority.

12. Changes to This Policy

We may update this Privacy Policy from time to time to reflect changes in our practices or legal requirements. The "Last updated" date at the top indicates when revisions were made. Continued use of the Site after changes constitutes acceptance of the updated policy.

13. Contact Us

If you have any questions, concerns, or requests regarding this Privacy Policy or our data practices, please email us at [email protected].