Slate Milk Promo Codes — 15% Off

Yes. New customers who sign up for the Slate Milk email newsletter receive 15% off their first order. No minimum spend is required. The discount code is delivered by email after sign-up and applied at checkout.

1. Add your items to the cart.
2. Proceed to checkout by clicking the cart icon and selecting "Check Out."
3. Find the "Discount code or gift card" field on the order summary panel (desktop) or below your item list (mobile).
4. Enter your code and click "Apply." The saving reflects immediately in your order total.
5. Complete your purchase once the discount appears in the summary.

The Mystery Discount is an on-site scratch-card on the Slate Milk homepage. Interact with it before building your cart to reveal a personalized discount code. The amount varies per user. Claim the code at checkout — it takes under a minute.

Subscribers save up to 15% on every recurring delivery. Slate Milk states that qualifying subscriptions can save shoppers over $30 per order. Combining a subscription order with the $50 free-shipping threshold removes the $4.99 flat-rate fee too.

Yes. Orders of $50 or more shipped to the Continental US qualify for free standard shipping. Orders under $50 pay a flat $4.99 rate. Alaska and Hawaii shipping is calculated by package weight. International shipping is not available.

No. Due to their perishable nature, Slate Milk products cannot be returned or exchanged. However, if your order arrives damaged or incorrect, contact drink@slatemilk.com within 30 days with photos and your order details to request reimbursement.

Slate Gift Cards are available in eight amounts: $5, $10, $15, $20, $25, $50, $75, and $100. They're purchased directly from the Slate Milk website and redeemed using the discount code field at checkout.

The Build Your Own Box option on the Slate Milk website lets you mix and match cans across the product range and save up to $20 compared to buying standard pre-set packs. It can be combined with a Subscribe & Save setup for additional recurring savings.

Slate Loyalty awards points on every purchase. Points are redeemable for free products, merchandise, and gift cards. Slate has run double-points events to help members earn faster. Sign in to your account on the Slate Milk website to track and redeem your balance.

Reach the Slate Milk support team by email at drink@slatemilk.com or via the contact page at slatemilk.com/pages/contact. For damaged or incorrect orders, get in touch within 30 days of delivery and include photos, your name, and your order number.