# Burn ERC-721 Token

It is possible to proceed an ERC-721 Token burning test using Remix.

{% hint style="info" %}
All examples are based on WEMIX3.0 Testnet.
{% endhint %}

Let's proceed with the ERC-721 token burning process.

[Write ERC-721 Contract](/en/tutorial/erc-721-token/write-erc-721-contract.md) and [Minting ERC-721 Token](/en/tutorial/erc-721-token/minting-erc-721-token.md) should proceed first.

## Burn ERC-721 Token

To burn a Minted ERC-721 Token, enter the issued TokenID. After then, the ERC-721 Token will be burned. 

You can see the deployed contracts in the Deployed Contracts section of the ERC-721 Contract Deployment and Minting screen. 

Select 'burn' to enter TokenID. 

The figure below shows an example of Token ID 1 being burned.

<figure><img src="/files/nCHV82N6SD6RxuwiQpo3" alt=""><figcaption><p>Burning Token ID 1</p></figcaption></figure>

When you select 'transact' after entering TokenID, a MetaMask pop-up appears and a screen showing the default 'Gas Fee' based on Ethereum appears.

<figure><img src="/files/uZjNPs42kCTLJqJnDkjd" alt=""><figcaption><p>MetaMask, default 'Gas fee'</p></figcaption></figure>

WEMIX has a different fee policy than Ethereum, so press the 'Site suggested' button to change t the Gas Fee.

Selecting 'Advanced' on the screen below allows the user to set 'Max priority fee (GWEI)' and 'Max fee (GWEI)' manually.

<figure><img src="/files/atQ6uB2TGZHJQMgl6wFY" alt=""><figcaption><p>MetaMask default 'Gas Fee' setting entry screen</p></figcaption></figure>

<figure><img src="/files/yFxWgrCmECMQvEYmj40n" alt=""><figcaption><p>'Gas Fee' setting</p></figcaption></figure>

Currently, WEMIX is using a fixed 'Max priority fee (GWEI)' and the value is 100.&#x20;

Max fee is a user-defined value and the minimum value is MaxPriorityFee+BASE\_FEE.&#x20;

BASE\_FEE in WEMIX is variable according to EIP-1559. Therefore, for a transaction to be successfully created, it is recommended to set it as follows.

1. Max base fee (GWEI) = 101
2. Max priority fee (GWEI) = 100&#x20;

Complete the Fee setup in the figure above and select 'Save' to be ready for burning Token as shown below.

<figure><img src="/files/lPxoFygiE5boqZki9IsP" alt=""><figcaption><p>Confirm ERC-721 Token burning </p></figcaption></figure>

Select 'Confirm' in the figure above to burn ERC-721 Token.

If a green check mark appears at the bottom of the Remix screen as shown below, the burning  ERC-721 Token is completed normally.

<figure><img src="/files/UwY9VZLAuldXrrzX0arb" alt=""><figcaption><p>Complete ERC-721 Token burning</p></figcaption></figure>

Copy the transaction hash that appears as a result of the run, and search in [Testnet Explorer](https://explorer.test.wemix.com/), to confirm that the ERC-721 Token has been burned.

The figure below is an example of what [Testnet Explorer](https://explorer.test.wemix.com/) has seen.

<figure><img src="/files/Xuvo833SKAlE0nPl4kUI" alt=""><figcaption><p>Before burning TokenID 1</p></figcaption></figure>

<figure><img src="/files/lxhcawtp4bKjLYCwmmTM" alt=""><figcaption><p>After burning TokenID 1</p></figcaption></figure>


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