How to remove the egg yolk while keeping the eggshell intact.

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Ngày cập nhật gần nhất: 15/4/2026

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Items you will need

The technique for removing the egg yolk while keeping the eggshell intact is often used in craft projects that require empty eggshells. These empty shells can last for many years, and once the yolk is removed, the shell remains intact. Check the guide below for some effective techniques on how to carefully extract the yolk while keeping the shell whole.

Steps

Pierce two small holes into a medium-sized raw egg.

You can also use a small handheld drill (avoid using an electric drill), a small rotating tool, or simply spin it with your fingers. Be gentle when pushing into the eggshell to prevent breaking it. The drill bit should be made of hard metal or carbide to avoid leaving any residue that could contaminate the yolk you're extracting.

Look for soft spots on the eggshell – sometimes these areas appear gray. If you can't locate them, simply choose a point near the middle of the egg and make a hole.

Hold the egg firmly in your non-dominant hand (but be careful not to break it!) and gently insert a nail into the egg with your dominant hand. Apply consistent pressure as you insert the nail.

To make it easier to puncture the egg, try sanding the eggshell with fine-grit sandpaper to thin it out. This way, you can more easily use a nail or paperclip to pierce the shell. A paperclip works well to break the egg's yolk, allowing the contents to flow out smoothly.

Insert a straightened needle, wire, paperclip, toothpick, or small bubble-blowing tool through the larger hole. Puncture the yolk and rupture the thin membrane surrounding it. Gently push the tool into the hole, continuing to apply slight pressure.

Decide how you'll remove the contents of the egg. The traditional method often involves using a small straw (the type used for drinking) along with air from your mouth, but you can also use a syringe to inject air through the hole. If you prefer not to use your mouth, you can choose from the following tools:

Ear syringe
Syringe (without a sharp needle)
Glue gun
Specialized egg expulsion tool
Small air compressor tools like those found in tire pumps or spray devices. Attach a nozzle with low pressure and gently insert it into the hole of the egg. The egg will expel its contents without needing to break the yolk.
- Check the air pump for oil or debris by releasing air onto a clean sheet of paper.
- The egg may crack or explode.
- High-pressure air can be dangerous. Avoid using large compressors or pressure chambers, never point the nozzle toward your body or face, and ensure that children don't operate air compressors.

Prepare a large bowl or jar to hold the egg yolk. Position the egg directly above the bowl when you're ready to extract the yolk. If you're using clean tools, you can hold the partially beaten yolk for later use.

If you prefer the traditional method, insert a straw into the small hole. Blow air through the straw into the egg to release the yolk through the larger hole. Alternatively, you can place your mouth on the hole and blow directly. Continue until all the yolk has been expelled.

If you're using a syringe or a specialized tool to extract the egg, position the tool into the small hole of the egg. Push air or water through the hole to push the egg out. If you use water, note that the egg won't be suitable for cooking. Repeat the process until all the contents are removed.

Take a glass of water and pour it into the eggshell to clean the inside. Then, use a straw or syringe to push the remaining water and egg contents out. Gently shake and repeat until the eggshell is clean.

You'll need to perform this over the prepared bowl—if you plan to use the egg later, you might want another bowl to catch the water or pour the water into the sink.

Dry the empty eggshell. You can microwave the shell on high for 15-30 seconds or bake it in an oven at 150ºC. This will harden the eggshell.

Alternatively, you can let the eggshell air dry (with the large hole facing down) for 2-3 days.

Hoàn tất. Bây giờ thì vỏ trứng đã sẵn sàng để trang trí hoặc trưng bày.

Lời khuyên

Nếu có thể, bạn nên dùng trứng ở nhiệt độ phòng để lòng trứng không bị cứng và chảy ra ngoài dễ dàng hơn.
Đừng lãng phí trứng! Khi lấy hết lòng trứng ra ngoài, bạn vẫn có thể tận dụng để làm món trứng bác hoặc các món khác, chỉ cần đảm bảo các dụng cụ được sử dụng đều sạch. Đậy bát bằng màng bọc thực phẩm, đùng đĩa để đậy hoặc dụng cụ thích hợp để đậy trứng đến khi cần dùng.
Lưu ý rằngsau khi đã lấy lòng trứng ra thì trứng sẽ nổi lên khi bạn vào nước nhuộm.
Nếu muốn trang trí thêm cho trứng, bạn có thể lấy một cây kim nhỏ và đâm tạo hình cho vỏ trứng. Bạn sẽ không thấy rõ họa tiết nếu để nguyên nhưng khi nhuộm màu thì phần thiết kế sẽ rất nổi bật.
Sau khi đâm hai lỗ, trứng sẽ chảy ra. Do đó, bạn cần giữ trứng trên bát hoặc bồn rửa trong suốt quá trình thực hiện.
Bạn có thể dùng mũi khoan nhọn hình giọt nước để đâm lỗ.
Bạn có lấy lòng trứng nhưng vẫn giữ nguyên vỏ chỉ với những dụng cụ kể trên.
Khi đâm đinh ghim vào trứng, nên nhớ đừng dịch chuyển ghim ngang dọc để không làm vỡ trứng.
Trứng sau khi đâm lỗ rất mỏng manh nên bạn cần xử lý cẩn thận kể cả khi đã hoàn tất.
Nếu làm nóng vỏ trứng rỗng quá lâu, chúng sẽ vỡ vì nhiệt độ cao!

Cảnh báo

Bạn cần cẩn thận khi sử dụng trứng sống vì chúng có thể mang vi khuẩn salmonella. Rửa tay và các dụng cụ bạn đã dùng với nước xà phòng ấm trước và sau khi xử lý trứng. Phụ nữ mang thai và người có hệ miễn dịch yếu thường rất dễ nhiễm khuẩn salmonella.

Items you will need

Room temperature medium-sized raw egg
Needle, pin, small tack, or bottle opener with a sharp tip
Sharp-tipped needle, as mentioned earlier, can be prepared using a file or abrasive surface
Ear syringe, syringe, or glue applicator (with or without a needle), specialized tool for extracting egg contents, small straw or basketball pump nozzle attached to a bicycle pump (wrap the needle tip with a damp cloth to ensure it seals firmly on the eggshell hole)
Sandpaper to thin the eggshell
Bowl to catch the egg yolk

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