Frequently Asked Questions

Questions About Your Order

Yes, we ship all over the world. Shipping costs will apply, and will be added at checkout, but we definitely understand that international shipping can be expensive, so we always offer 20% off on international orders to help offset the shipping cost. Just use the code INTL20 for 20% off of your entire order! 

For overseas deliveries, we recommend allowing 3-4 weeks for your order to arrive. Delivery details will be provided in your confirmation email.

Most orders ship out within 24 hours, except on weekends and holidays.

We only offer USPS shipping options which can take 3-8 business days to arrive. 

If you need your order quickly, all of our products are available for 2 day shipping on Mason Bottle's Amazon store.

USPS is our primary shipping carrier.

For health reasons, Mason Bottle can only accept returns and exchanges for unopened and unused items. We always recommend ordering a small quantity of product first. That way, if your baby doesn't take to the nipple (which is rare, but can happen with any bottle) you won't have made a large investment in bottles that don't work for your family.  

Here are further specifics about our return policy:

Our policy lasts 30 days. If 30 days have gone by since your purchase, unfortunately we can’t offer you a refund or exchange.

To be eligible for a return, your item must be unused and in the same condition that you received it. It must also be in the original packaging.

To complete your return, we require a receipt or proof of purchase.

Once your return is received and inspected, we will send you an email to notify you that we have received your returned item. We will also notify you of the approval or rejection of your refund. 
If you are approved, then your refund will be processed, and a credit will automatically be applied to your credit card or original method of payment, within 14 days.

Late or Missing Refunds 
If you haven’t received a refund yet, first check your bank account again. 
Then contact your credit card company, it may take some time before your refund is officially posted. 
Next contact your bank. There is often some processing time before a refund is posted. 
If you’ve done all of this and you still have not received your refund yet, please contact us at

We only replace items if they are defective or damaged. If you need to exchange it for the same item, send us an email at

If the item was marked as a gift when purchased and shipped directly to you, you’ll receive a gift credit for the value of your return. Once the returned item is received, a gift certificate will be mailed to you.

If the item wasn’t marked as a gift when purchased, or the gift giver had the order shipped to themselves to give to you later, we will send a refund to the gift giver and he or she will find out about your return.


To return your product, contact for return shipping address information.

You will be responsible for paying for your own shipping costs for returning your item. Shipping costs are non-refundable. If you receive a refund, the cost of return shipping will be deducted from your refund.

Depending on where you live, the time it may take for your exchanged product to reach you, may vary.

If you are shipping an item over $75, you should consider using a trackable shipping service or purchasing shipping insurance. We don’t guarantee that we will receive your returned item.

Questions About Mason Bottle

At Mason Bottle, we believe healthy doesn't have to be high end. Since glass baby bottles can be expensive, we knew making a bottle compatible with mason jars would help families save money, especially if they already have jars at home. Mason jars are also a cleaner and more cost-effective alternative to breast milk storage bags. Simply store breast milk in a mason jar, then add the Mason Bottle nipple to turn it into a bottle.

The width of a mason jar lends itself perfectly to a breast-like nipple shape that is easier for babies to latch onto. What is it about the wide nipple? We can't say exactly, but we can tell you that we have shipped nearly 1000 orders, and have yet to hear a report of a baby rejecting our nipple. If your baby didn't take to our nipple, please let us know at We'd love to see if we can help. 

Mason Bottle is 100% Made in the USA! 

When you look at the top of the nipple, you can tell which size it is by the pattern of the holes: 

View a visual diagram here

Slow Flow: 1 Hole

Medium Flow: 2 Holes in a Straight Line

Fast Flow: 3 Holes in a Triangle Shape

Flexible Flow: Y Shaped Cut

Yes! All of our products are dishwasher safe, but if you are using the metal lid and band, we recommend rinsing and thoroughly drying these pieces to extend their life. 

We recommend cleaning the bottle before first use. To sterilize the nipples, simply boil them in water for 5 minutes

Mason Bottle products are designed to work with any regular-mouth mason jar, and should never leak. We haven't had any reports of leaking thus far, but if you experience this, be sure to let us know so we can help you out at

Yes! The Maymom adapter from Spectra lets you pump directly into the mason jar.