PRODUCTION TIME
Production time is 3–5 business days after your design confirmation + shipping.
* IMPORTANT * We’ll send a preview of your personalized design to the email you used for your order—please check your inbox and your spam folder. If we don’t hear back within a few days, we’ll proceed with production as per the preview, unless we have any doubts or are missing a file. You’ll find more shipping details in our Shipping & Returns section.

We produce and ship orders once a week to reduce our environmental impact: delivery drivers only need to come once a week, we can batch orders together, and it helps us stay organized—Biterswit is just the two of us (Carlota and Norma), and we can’t keep up with daily production and shipping. Thanks so much for understanding!

We believe sustainability goes beyond recyclable packaging—our work process aims to be mindful too. So no, your order won’t arrive the next day, but it will arrive lovingly packed by hand, with care and attention to reduce our environmental footprint as much as possible. So all we can say is: thank you for your patience, and for supporting our small studio!

All our stamps are handmade in Barcelona. We cut and mount each one on natural wood from local suppliers.

HOW TO ORDER YOUR CUSTOM STAMP
1. Fill in the Personalization section with the required info. If you need to upload an image, check the format details below.
2. Click the SAVE PERSONALIZATION button so we receive your details. If you don’t click this button, the info won’t be saved and you won’t be able to add the product to your cart.
3. Select your preferred options from the drop-down menus (if needed).
4. Add the product to your cart and complete your purchase.

Once we have all the material we need for your custom order, we’ll send you a digital preview of the design within 24–48 business hours to the email associated with your account. The preview will include the actual size of the stamp design, as this depends on each layout and name.

If you don’t see the email, check your spam folder. If nothing’s there, just write to us at hola@biterswit.com with your order number.

FILE FORMAT FOR IMAGE UPLOAD
If you’re uploading an image, it must be a .JPG file at 300dpi, black and white only (not grayscale), and with a minimum font size of 8pt. We need the largest, highest-quality version you have :) If the file you upload doesn’t meet the quality requirements, we’ll email you as soon as we review your order.

If you have the original Illustrator or a .PDF file, please upload a .JPG during your order and then email the original file to hola@biterswit.com with your order number.
The Illustrator or PDF file must have outlined fonts—meaning all text must be converted to shapes, not editable text. If you're unsure about anything, just send us an email!

I DON’T HAVE MY LOGO OR IMAGE IN BLACK AND WHITE
No worries! If your logo has watercolor textures, shades of gray, or multiple colors, just send us the highest-quality version you have to hola@biterswit.com and we’ll let you know what we can do. There’s always a solution :)

DIGITAL FILE
If you’re purchasing a stamp with a Biterswit design, you can also add the matching digital file to use in your invitations, stationery, signage, guestbooks, websites, videos...
The digital file will be sent as a black-and-white PDF.

This stamp is made for marking your ceramic pieces, polymer clay, and cold process soaps.
It’s got just the right hardness and depth to press into your clay without losing detail. Just a heads-up: these stamps aren’t made for use with ink.

BITERSWIT GUIDE: USING & CARING FOR YOUR STAMPS
Here’s our Biterswit guide with tips on how to take care of your stamps and how to use them like a pro.

HOW TO STAMP ON CLAY – Little Tips & Tricks :)
- Super easy! Your clay is ready to stamp when it’s still soft and shapeable—not too dry. It should be soft or at a leather-hard stage so the stamp can sink in nicely. You’ll figure out the sweet spot with a bit of trial and error depending on your clay type, moisture, and room conditions.
- Avoid stamping on material that’s too hard—it could break your stamp.
- Try out different levels of pressure until you find what works best with your clay. Since the stamp is transparent, you can peek from the side to see how deep it’s going.
- Bigger stamps need more pressure, so it can help to support your piece from underneath with something like a metal base, your hand, fingers—whatever works to keep it steady. Big stamps are great for flat objects like plates, trays, coasters, or thicker-edged pieces. For delicate pieces, we recommend using smaller stamps since they need less pressure.
- If the stamp sticks to the clay, a light dusting of cornstarch on the surface can work wonders to keep it from sticking.

HOW TO STAMP – TIPS & TRICKS
- Your soap is ready to stamp when it’s firm enough to cut—usually around 24 hours after making it. This depends on humidity and temperature, so check when you can unmold it.
- Once unmolded, cut it into bars.
- Spray the soap with 96º alcohol before stamping. It prevents the stamp from sticking. We’ve tried spraying the stamp too, but spraying the soap gives better results (and it’s easier!).
- Try different pressure levels to find what works best for your soap’s consistency. If it’s too dry, you may need to press a bit harder. Since the stamp is transparent, you can look from the side to check how deep it’s going.

OTHER WAYS TO USE YOUR STAMP
Your stamp isn’t just for ceramics! You can also use it on:
- Cold process Soaps (When they are soft)
- Polymer clay
- White air-dry clay
- Cookie dough
- And other similar materials

HOW TO CLEAN YOUR STAMP
If your stamp’s getting a bit clogged with clay and your impressions aren’t as sharp as they used to be, it’s cleaning time! :)
Here’s a short video that shows you how (we hope it helps!).